[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20240206144313.2050392-5-edumazet@google.com>
Date: Tue, 6 Feb 2024 14:43:00 +0000
From: Eric Dumazet <edumazet@...gle.com>
To: "David S . Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>
Cc: Antoine Tenart <atenart@...nel.org>, netdev@...r.kernel.org, eric.dumazet@...il.com,
Eric Dumazet <edumazet@...gle.com>
Subject: [PATCH v4 net-next 03/15] bareudp: use exit_batch_rtnl() method
exit_batch_rtnl() is called while RTNL is held,
and devices to be unregistered can be queued in the dev_kill_list.
This saves one rtnl_lock()/rtnl_unlock() pair,
and one unregister_netdevice_many() call.
Signed-off-by: Eric Dumazet <edumazet@...gle.com>
---
drivers/net/bareudp.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/net/bareudp.c b/drivers/net/bareudp.c
index 31377bb1cc97cba08e02dc7d48761068627af3fb..4db6122c9b43032a36b98916bb4390e3d6f08f68 100644
--- a/drivers/net/bareudp.c
+++ b/drivers/net/bareudp.c
@@ -760,23 +760,18 @@ static void bareudp_destroy_tunnels(struct net *net, struct list_head *head)
unregister_netdevice_queue(bareudp->dev, head);
}
-static void __net_exit bareudp_exit_batch_net(struct list_head *net_list)
+static void __net_exit bareudp_exit_batch_rtnl(struct list_head *net_list,
+ struct list_head *dev_kill_list)
{
struct net *net;
- LIST_HEAD(list);
- rtnl_lock();
list_for_each_entry(net, net_list, exit_list)
- bareudp_destroy_tunnels(net, &list);
-
- /* unregister the devices gathered above */
- unregister_netdevice_many(&list);
- rtnl_unlock();
+ bareudp_destroy_tunnels(net, dev_kill_list);
}
static struct pernet_operations bareudp_net_ops = {
.init = bareudp_init_net,
- .exit_batch = bareudp_exit_batch_net,
+ .exit_batch_rtnl = bareudp_exit_batch_rtnl,
.id = &bareudp_net_id,
.size = sizeof(struct bareudp_net),
};
--
2.43.0.594.gd9cf4e227d-goog
Powered by blists - more mailing lists